header {
    height: 1.33rem;
    background-color: #ff841d;
    overflow: hidden;
  }
  header .back {
    margin-top: 0.27rem;
    display: block;
    width: 0.8rem;
    height: 0.8rem;
    font-size: 0.59rem;
    color: white;
    text-align: center;
    line-height: 0.8rem;
    float: left;
  }
  header h4 {
    color: white;
    height: 0.59rem;
    font-size: 0.53rem;
    margin: 10px 0 0 75px;
    float: left;
  }
  header .download {
    float: right;
  }
  header .download img {
    width: 0.91rem;
    height: 0.91rem;
    margin-top: 0.21rem;
    margin-right: 0.4rem;
  }
  
  main{
    background-color: #fff;
      h2{
        color: #333333;
        word-break: break-all;
        font-size: 20px;
        font-weight: bolder;
        line-height: 19px;
        text-align: left;
        margin: 20px 0;
      }
      .txt{
        color: #999;
        margin-bottom: 15px;
        font-size: 18px;
        span{
          float: left;
        }
      }
      
      p{
        padding-right: 50px;
        margin-bottom: 10px;
        font-size: 16px;
      }
      img{
        width: 5.866667rem /* 220/37.5 */;
        height: 5.866667rem /* 220/37.5 */;
      }
      
  }
  
  .buy {
    background-color: #fff;
    margin-bottom: 10px;
  }
  .buy a {
    border-radius: 10px;
    display: block;
    width: 80%;
    height: 0.91rem;
    text-align: center;
    margin: 0 auto;
    background-color: #ff9000;
    color: #fff;
    font-weight: bold;
    font-size: 0.43rem;
    line-height: 0.91rem;
  }
  
  .erweima img {
    width: 8.96rem;
    padding: 0.27rem;
  }
  
  .textarea {
    width: 9.47rem;
    padding: 0.27rem;
    overflow: hidden;
  }
  .textarea textarea {
    width: 8.88rem;
    height: 2.08rem;
    padding: 0.27rem;
    border: 1px solid #ccc;
    outline: none;
    margin: 0 auto;
    resize: none;
  }
  .textarea a {
    display: block;
    height: 1.47rem;
    width: 3.2rem;
    background-color: #ff9000;
    line-height: 1.47rem;
    color: #ffffff;
    text-align: center;
    float: right;
    margin-top: -3px;
  }
  
  .comment {
    overflow: hidden;
    font-size: 0.37rem;
  }
  .comment .tit,
  .comment .reply {
    display: none;
  }
  .comment #newcomment {
    display: block;
    margin-bottom: 10px;
  }
  .comment ul li {
    padding-left: 15px;
  }
  .comment ul li .userimg {
    float: left;
    margin-right: 25px;
  }
  .comment ul li .userimg img {
    width: 1.33rem;
  }

  footer {
    height: 5.95rem;
    background-color: #f4f4f4;
  }
  footer .more {
    width: 9.47rem;
    height: 0.8rem;
    background-color: #f4f4f4;
    padding: 10px;
  }
  footer .more a {
    display: block;
    font-size: 13px;
    line-height: 0.8rem;
    text-align: center;
    border-radius: 0.13rem;
    border: 1px solid #ddd;
    background: linear-gradient(#fff, #f4f4f4);
  }
  footer .chart {
    margin: 10px 0;
    height: 0.93rem;
    background-color: #ff9000;
  }
  footer .chart .fl {
    color: #fff;
    font-weight: bold;
    font-size: 0.48rem;
    line-height: 0.93rem;
    padding-left: 10px;
  }
  footer .chart img {
    width: 0.53rem;
    height: 0.53rem;
    float: right;
    margin-top: 7.5px;
    margin-right: 10px;
  }
  footer .login {
    height: 3.25rem;
  }
  footer .login .row li {
    float: left;
    width: 2.5rem;
    height: 0.88rem;
    line-height: 0.88rem;
    padding: 0 15px;
    border: 1px solid #c4c4c4;
    text-align: center;
    border-left: none;
    margin-bottom: 15px;
  }
  footer .login p {
    text-align: center;
    margin-bottom: 10px;
  }